@@ -110,10 +110,11 @@
     @"of_file_type_character_special";
 const of_file_type_t of_file_type_block_special = @"of_file_type_block_special";
 const of_file_type_t of_file_type_socket = @"of_file_type_socket";
 
 #ifdef OF_AMIGAOS4
+# define CurrentDir(lock) SetCurrentDir(lock)
 extern struct ExecIFace *IExec;
 static struct Library *DOSBase = NULL;
 static struct DOSIFace *IDOS = NULL;
 #endif
 
@@ -128,11 +129,11 @@
 	if (dirChanged)
 		UnLock(CurrentDir(originalDirLock));
 
 # ifdef OF_AMIGAOS4
 	if (IDOS != NULL)
-		DropInterface(IDOS);
+		DropInterface((struct Interface *)IDOS);
 
 	if (DOSBase != NULL)
 		CloseLibrary(DOSBase);
 # endif
 }